the man who gave cnn this video did not want to be identified. but talked so could you see what the lapd was up against. >> you look at chris, you could see he's a little bit of an expert. look at the way he loads and disarms, and almost no movement when he shoots the gun. pop, like nothing. >> reporter: he stood out. >> he stood out. he knew what he was doing. >> reporter: being a cop, could you tell that it was for to him? >> yeah. i think it was very for to him. yeah. >> reporter: could you see it. >> yeah. >> reporter: even during the training. >> yeah. i think it is a 300-pound dummy. he does that easily. >> reporter: this is a very strong man. >> right. >> reporter: but not everything was easy for the aspiring police officer. drill officers picked on him for his weight and slow running. >> he was always struggling. i thought maybe because he is a big guy, picking on him. couple of times he would respond sort of aggressively. you know. he would yell back louder than anybody else would. you know, he would be like -- yes, drill instructor. or